Medium close up of a rattlesnake threatening to strike in a desert in Arizona, rattling the tip of its tail and moving away from camera.

Scenic wide shot, Southern Africa. Storm clouds threaten and a small tornado gains strength as it traces arid terrain.

Namibia, wide shot of savannah grasslands held in stark contrast with threatening, dark storm clouds. Bursts of sunlight shine through in a vertical pattern.

A large rock is intermittently consumed by crashing waves and whitewash. Grey storm clouds threaten overhead.

Wide shot of dark clouds threatening a blue sky. An emerging sun silhouettes a distant tree line.

Mantis-Shrimp with its head protruding from a hole on seabed. It then leaps out and displays yellow and blue legs.

Close up of a great white shark bursting out of the water and seizing some bait suspended from rope.

Texas, USA: Black tornado clouds gathering in pink sky, a tornado vortice gathers and disappears.

Kenya, Africa. Pan following a female cheetah chasing a Thomson's gazelle fawn at full speed across a grassy plain. The cheetah catches the gazelle fawn and walks away with it in its jaws.

Medium close up of a rattlesnake coiled on dry ground in the threat position, rattling the tip of its tail.

Southern Africa, camera pans to follow a small tornado as it moves across dry savannah grasslands.

Medium close up of a camouflaged rattlesnake striking at unseen prey in Arizona.

Kenya, Africa. A grazing Thomson's gazelle bolts as it becomes aware of a cheetah stalking it. Another gazelle enters the frame and the cheetah gives chase catching and asphyxiating the second gazelle.

Close up view of flames and smoke rising from a forest fire.

Slow motion a bat flies towards the camera and catches a fish from the surface of a pond, light reflects from the ripples on water.

Close up view of a mountain gorilla staring into the camera with its dark eyes. Flies flying in the foreground.

Slow motion a bat in flight catches a fish from the surface of a pond, light reflects from ripples of water.

Tanami Desert, Australia. Close up view of a large frog using its tongue to catch and eat termites swarming on a damp log.

Manitoba, Canada: A large tornado with dark clouds rotating powerfully.

Kenya, Africa. Two large cheetah cubs chase a young male Thomson's gazelle. The gazelle cuts inside and changes direction in an attempt to allude the cheetahs before eventually being brought down.

Manitoba, Canada: Zoom in toward a massive black tornado. Huge swirl of dust and air rotates over a field ominously.

Orange flames erupting against black night sky as a forest fire rages on hills.

Wide shot of sombre dark clouds lingering over pack ice and icy waters. A glimpse of sunlight creates a white glow in the distance.

Close up of a great white shark in clear water attacking and devouring bait with razor sharp teeth.

East Africa. A Graceful chameleon, coloured green to match its surroundings, creeps steadily up behind a winged termite and catches it with a flash of its tongue before chewing and eating it.

Waves lapping against volcano edge. Steam rises from lava trailing into sea. Guatemala.

Tanami Desert, Australia. A large frog partially submerged in red water uses its tongue to catch and eat termites swarming on a damp log.

Slow motion bat in flight catches a fish from the surface of a pond, light reflects from the ripples on water.

Aerial view over a raging forest fire. Lots of smoke rising to the sky with burning ground glowing in orange and red colours as the flames destroy forest.

Kamchatka, Eastern Siberia. A large brown bear stands poised above the shallow water of a river before catching a sockeye salmon in its jaws.

Slow motion a bat flies towards the camera and catches a fish from the surface of a pond, light reflects from the ripples on water.

Unusual view of Intercity train very quickly approaching towards and over camera which is positioned on railway track, train has yellow front with buffers

Scotland, wide shot of snow-capped mountains and loch. Sunlight passes through grey storm clouds and reflects off water.

Kamchatka, Eastern Siberia. A large brown bear charges into the shallow water of a river to catch a salmon, creates splashes.

Orange flames engulfing vegetation on hillside with orange smoke rising in the black night sky.

Wide shot. A blue sky peeps through a blanket of dark, low clouds that torment a wide lake.

A close up view of a Silverback Mountain Gorilla staring straight into the camera with a very determined look in its eyes.

Time lapse of cumulus storm clouds in a blue sky moving above flat grasslands.

Panning shot of a goshawk catching a moorhen in mid-flight.

Slow motion bat in flight catches a fish from the surface of a pond, light reflects from the ripples on water.

Serengeti National Park, Tanzania, Africa: A cheetah chases and catches a Grant's Gazelle by leaping onto its back. The gazelle keeps running and fighting the cheetah with its horns, and eventually manages to escape from the cheetah's claws.

Svalbard, Norway: A polar bear feeds on a seal carcass on an icefloe. The snow and ice is red from the carcass' blood as the polar bear tears the flesh.

Unrelenting rains shroud the Australian outback in a thick, grey, mist. In the foreground, violent winds cause trees to bend dramatically.

Manitoba, Canada: Zoom towards a huge black tornado which has several vortices.

A missile shoots up into the sky leaving a large plume of smoke behind.

South Africa, intermittent lightning illuminates a night sky in a deep indigo. A green tree in the foreground lights up occassionally.

Wide shot of dark stormclouds in Southern Africa lingering over dry, flat ground. Camera pans to reveal the boundless landscape.

Yellow flames rising against black night sky as forest fires rage on hillside.

A point of view shot of camera going through jungle to find a Silverback Mountain Gorilla lounging amid the bushes. The gorilla looks at the camera curiously.

India: A young Bengal Tiger walks in a forest.